ES3049193T3 - Method of decoding comprising a bandwidth extension of an audio signal - Google Patents
Method of decoding comprising a bandwidth extension of an audio signalInfo
- Publication number
- ES3049193T3 ES3049193T3 ES24212481T ES24212481T ES3049193T3 ES 3049193 T3 ES3049193 T3 ES 3049193T3 ES 24212481 T ES24212481 T ES 24212481T ES 24212481 T ES24212481 T ES 24212481T ES 3049193 T3 ES3049193 T3 ES 3049193T3
- Authority
- ES
- Spain
- Prior art keywords
- signal
- audio signal
- audio
- distorted
- frequency
- Prior art date
- Legal status (The legal status is an assumption and is not a legal conclusion. Google has not performed a legal analysis and makes no representation as to the accuracy of the status listed.)
- Active
Links
Classifications
-
- G—PHYSICS
- G10—MUSICAL INSTRUMENTS; ACOUSTICS
- G10L—SPEECH ANALYSIS TECHNIQUES OR SPEECH SYNTHESIS; SPEECH RECOGNITION; SPEECH OR VOICE PROCESSING TECHNIQUES; SPEECH OR AUDIO CODING OR DECODING
- G10L21/00—Speech or voice signal processing techniques to produce another audible or non-audible signal, e.g. visual or tactile, in order to modify its quality or its intelligibility
- G10L21/02—Speech enhancement, e.g. noise reduction or echo cancellation
- G10L21/038—Speech enhancement, e.g. noise reduction or echo cancellation using band spreading techniques
Landscapes
- Engineering & Computer Science (AREA)
- Acoustics & Sound (AREA)
- Computational Linguistics (AREA)
- Signal Processing (AREA)
- Health & Medical Sciences (AREA)
- Audiology, Speech & Language Pathology (AREA)
- Human Computer Interaction (AREA)
- Quality & Reliability (AREA)
- Multimedia (AREA)
- Physics & Mathematics (AREA)
- Compression, Expansion, Code Conversion, And Decoders (AREA)
- Stereophonic System (AREA)
- Transmission Systems Not Characterized By The Medium Used For Transmission (AREA)
- Radio Relay Systems (AREA)
- Tone Control, Compression And Expansion, Limiting Amplitude (AREA)
- Reduction Or Emphasis Of Bandwidth Of Signals (AREA)
Applications Claiming Priority (2)
| Application Number | Priority Date | Filing Date | Title |
|---|---|---|---|
| US2512908P | 2008-01-31 | 2008-01-31 | |
| DE102008015702A DE102008015702B4 (de) | 2008-01-31 | 2008-03-26 | Vorrichtung und Verfahren zur Bandbreitenerweiterung eines Audiosignals |
Publications (1)
| Publication Number | Publication Date |
|---|---|
| ES3049193T3 true ES3049193T3 (en) | 2025-12-15 |
Family
ID=40822253
Family Applications (10)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES24211480T Active ES3058118T3 (en) | 2008-01-31 | 2009-01-20 | Decoder for a bandwidth extension of an audio signal |
| ES24211487T Active ES3049189T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES24212474T Active ES3049192T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES24189266T Active ES3017561T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES24212481T Active ES3049193T3 (en) | 2008-01-31 | 2009-01-20 | Method of decoding comprising a bandwidth extension of an audio signal |
| ES17186509T Active ES2925696T3 (es) | 2008-01-31 | 2009-01-20 | Dispositivo y procedimiento para una extensión de ancho de banda de una señal de audio |
| ES24212471T Active ES3049191T3 (en) | 2008-01-31 | 2009-01-20 | Method of decoding comprising a bandwidth extension of an audio signal |
| ES24212469T Active ES3049190T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES22183878T Active ES2988633T3 (es) | 2008-01-31 | 2009-01-20 | Dispositivo y procedimiento para una extensión de ancho de banda de una señal de audio |
| ES09705824.2T Active ES2649012T3 (es) | 2008-01-31 | 2009-01-20 | Procedimiento y dispositivo para extensión de ancho de banda de señal de audio |
Family Applications Before (4)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES24211480T Active ES3058118T3 (en) | 2008-01-31 | 2009-01-20 | Decoder for a bandwidth extension of an audio signal |
| ES24211487T Active ES3049189T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES24212474T Active ES3049192T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES24189266T Active ES3017561T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
Family Applications After (5)
| Application Number | Title | Priority Date | Filing Date |
|---|---|---|---|
| ES17186509T Active ES2925696T3 (es) | 2008-01-31 | 2009-01-20 | Dispositivo y procedimiento para una extensión de ancho de banda de una señal de audio |
| ES24212471T Active ES3049191T3 (en) | 2008-01-31 | 2009-01-20 | Method of decoding comprising a bandwidth extension of an audio signal |
| ES24212469T Active ES3049190T3 (en) | 2008-01-31 | 2009-01-20 | Device and method for a bandwidth extension of an audio signal |
| ES22183878T Active ES2988633T3 (es) | 2008-01-31 | 2009-01-20 | Dispositivo y procedimiento para una extensión de ancho de banda de una señal de audio |
| ES09705824.2T Active ES2649012T3 (es) | 2008-01-31 | 2009-01-20 | Procedimiento y dispositivo para extensión de ancho de banda de señal de audio |
Country Status (18)
| Country | Link |
|---|---|
| US (1) | US8996362B2 (pl) |
| EP (11) | EP4481736B1 (pl) |
| JP (1) | JP5192053B2 (pl) |
| KR (1) | KR101164351B1 (pl) |
| CN (1) | CN101933087B (pl) |
| AU (1) | AU2009210303B2 (pl) |
| BR (1) | BRPI0905795B1 (pl) |
| CA (1) | CA2713744C (pl) |
| DE (1) | DE102008015702B4 (pl) |
| DK (1) | DK3264414T3 (pl) |
| ES (10) | ES3058118T3 (pl) |
| HU (4) | HUE067868T2 (pl) |
| MX (1) | MX2010008378A (pl) |
| PL (5) | PL4425492T3 (pl) |
| PT (1) | PT3264414T (pl) |
| RU (1) | RU2455710C2 (pl) |
| TW (1) | TWI515721B (pl) |
| WO (1) | WO2009095169A1 (pl) |
Families Citing this family (52)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US8880410B2 (en) * | 2008-07-11 | 2014-11-04 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
| USRE47180E1 (en) * | 2008-07-11 | 2018-12-25 | Fraunhofer-Gesellschaft Zur Foerderung Der Angewandten Forschung E.V. | Apparatus and method for generating a bandwidth extended signal |
| PL4224475T3 (pl) | 2008-12-15 | 2024-03-18 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Dekoder powiększania szerokości pasma audio, powiązany sposób oraz program komputerowy |
| CA2966469C (en) * | 2009-01-28 | 2020-05-05 | Dolby International Ab | Improved harmonic transposition |
| PL4120254T3 (pl) | 2009-01-28 | 2025-05-19 | Dolby International Ab | Ulepszona transpozycja harmonicznych |
| US8515768B2 (en) * | 2009-08-31 | 2013-08-20 | Apple Inc. | Enhanced audio decoder |
| JP5433022B2 (ja) * | 2009-09-18 | 2014-03-05 | ドルビー インターナショナル アーベー | 高調波転換 |
| CA2778205C (en) | 2009-10-21 | 2015-11-24 | Dolby International Ab | Apparatus and method for generating a high frequency audio signal using adaptive oversampling |
| EP3564954B1 (en) | 2010-01-19 | 2020-11-11 | Dolby International AB | Improved subband block based harmonic transposition |
| AU2011226212B2 (en) | 2010-03-09 | 2014-03-27 | Dolby International Ab | Apparatus and method for processing an input audio signal using cascaded filterbanks |
| PT2545551T (pt) | 2010-03-09 | 2018-01-03 | Fraunhofer Ges Forschung | Resposta de magnitude aperfeiçoada e alinhamento temporal de um vocoder de fase com base no método de extensão de largura de banda para sinais de áudio |
| CN102934164B (zh) | 2010-03-09 | 2015-12-09 | 弗兰霍菲尔运输应用研究公司 | 改变回放速度或音调时处理音频信号中瞬态声音事件的设备和方法 |
| EP2388780A1 (en) | 2010-05-19 | 2011-11-23 | Fraunhofer-Gesellschaft zur Förderung der Angewandten Forschung e.V. | Apparatus and method for extending or compressing time sections of an audio signal |
| PL2581905T3 (pl) | 2010-06-09 | 2016-06-30 | Panasonic Ip Corp America | Sposób rozszerzania pasma częstotliwości, urządzenie do rozszerzania pasma częstotliwości, program, układ scalony oraz urządzenie dekodujące audio |
| EP3544009B1 (en) * | 2010-07-19 | 2020-05-27 | Dolby International AB | Processing of audio signals during high frequency reconstruction |
| CN102610231B (zh) * | 2011-01-24 | 2013-10-09 | 华为技术有限公司 | 一种带宽扩展方法及装置 |
| BR112013020587B1 (pt) | 2011-02-14 | 2021-03-09 | Fraunhofer-Gesellschaft Zur Forderung De Angewandten Forschung E.V. | esquema de codificação com base em previsão linear utilizando modelagem de ruído de domínio espectral |
| ES2529025T3 (es) | 2011-02-14 | 2015-02-16 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Aparato y método para procesar una señal de audio decodificada en un dominio espectral |
| MX2013009304A (es) | 2011-02-14 | 2013-10-03 | Fraunhofer Ges Forschung | Aparato y metodo para codificar una porcion de una señal de audio utilizando deteccion de un transiente y resultado de calidad. |
| ES2715191T3 (es) | 2011-02-14 | 2019-06-03 | Fraunhofer Ges Forschung | Codificación y decodificación de posiciones de impulso de pistas de una señal de audio |
| AR085218A1 (es) | 2011-02-14 | 2013-09-18 | Fraunhofer Ges Forschung | Aparato y metodo para ocultamiento de error en voz unificada con bajo retardo y codificacion de audio |
| JP5712288B2 (ja) | 2011-02-14 | 2015-05-07 | フラウンホーファー−ゲゼルシャフト・ツール・フェルデルング・デル・アンゲヴァンテン・フォルシュング・アインゲトラーゲネル・フェライン | 重複変換を使用した情報信号表記 |
| WO2012131438A1 (en) * | 2011-03-31 | 2012-10-04 | Nokia Corporation | A low band bandwidth extender |
| JP2013007944A (ja) * | 2011-06-27 | 2013-01-10 | Sony Corp | 信号処理装置、信号処理方法、及び、プログラム |
| US20130006644A1 (en) * | 2011-06-30 | 2013-01-03 | Zte Corporation | Method and device for spectral band replication, and method and system for audio decoding |
| MY157163A (en) | 2012-01-20 | 2016-05-13 | Fraunhofer Ges Forschung | Apparatus and method for audio encoding and decoding employing sinusoidal substitution |
| MY197538A (en) * | 2012-03-29 | 2023-06-22 | Ericsson Telefon Ab L M | Bandwidth extension of harmonic audio signal |
| EP2709106A1 (en) | 2012-09-17 | 2014-03-19 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating a bandwidth extended signal from a bandwidth limited audio signal |
| US9258428B2 (en) | 2012-12-18 | 2016-02-09 | Cisco Technology, Inc. | Audio bandwidth extension for conferencing |
| EP3136386B1 (en) | 2013-01-29 | 2021-10-20 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for generating a frequency enhanced signal using shaping of the enhancement signal |
| CN103971693B (zh) * | 2013-01-29 | 2017-02-22 | 华为技术有限公司 | 高频带信号的预测方法、编/解码设备 |
| BR112015018017B1 (pt) | 2013-01-29 | 2022-01-25 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Descodificador para a geração de um sinal áudio de frequência melhorada, método de descodificação, codificador para a geração de um sinal codificado e método de codificação com informação lateral de seleção compacta |
| KR101463022B1 (ko) * | 2013-01-31 | 2014-11-18 | (주)루먼텍 | 광대역 가변 대역폭 채널 필터 및 그 필터링 방법 |
| US9666202B2 (en) * | 2013-09-10 | 2017-05-30 | Huawei Technologies Co., Ltd. | Adaptive bandwidth extension and apparatus for the same |
| CN105900170B (zh) * | 2014-01-07 | 2020-03-10 | 哈曼国际工业有限公司 | 压缩音频信号的以信号质量为基础的增强和补偿 |
| FR3017484A1 (fr) * | 2014-02-07 | 2015-08-14 | Orange | Extension amelioree de bande de frequence dans un decodeur de signaux audiofrequences |
| CN111710342B (zh) * | 2014-03-31 | 2024-04-16 | 弗朗霍弗应用研究促进协会 | 编码装置、解码装置、编码方法、解码方法及程序 |
| US10847170B2 (en) | 2015-06-18 | 2020-11-24 | Qualcomm Incorporated | Device and method for generating a high-band signal from non-linearly processed sub-ranges |
| EP3182411A1 (en) * | 2015-12-14 | 2017-06-21 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for processing an encoded audio signal |
| US10074373B2 (en) * | 2015-12-21 | 2018-09-11 | Qualcomm Incorporated | Channel adjustment for inter-frame temporal shift variations |
| US10008218B2 (en) | 2016-08-03 | 2018-06-26 | Dolby Laboratories Licensing Corporation | Blind bandwidth extension using K-means and a support vector machine |
| EP3382702A1 (en) | 2017-03-31 | 2018-10-03 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | Apparatus and method for determining a predetermined characteristic related to an artificial bandwidth limitation processing of an audio signal |
| US10896684B2 (en) * | 2017-07-28 | 2021-01-19 | Fujitsu Limited | Audio encoding apparatus and audio encoding method |
| US10872611B2 (en) * | 2017-09-12 | 2020-12-22 | Qualcomm Incorporated | Selecting channel adjustment method for inter-frame temporal shift variations |
| WO2019081070A1 (en) * | 2017-10-27 | 2019-05-02 | Fraunhofer-Gesellschaft zur Förderung der angewandten Forschung e.V. | APPARATUS, METHOD, OR COMPUTER PROGRAM PRODUCT FOR GENERATING ENHANCED BANDWIDTH AUDIO SIGNAL USING NEURAL NETWORK PROCESSOR |
| WO2019145955A1 (en) | 2018-01-26 | 2019-08-01 | Hadasit Medical Research Services & Development Limited | Non-metallic magnetic resonance contrast agent |
| IL324371A (en) | 2018-04-25 | 2026-01-01 | Dolby Int Ab | Integration of high frequency reconstruction techniques with reduced post-processing delay |
| CN118782080A (zh) | 2018-04-25 | 2024-10-15 | 杜比国际公司 | 高频音频重建技术的集成 |
| CN115132214A (zh) | 2018-06-29 | 2022-09-30 | 华为技术有限公司 | 立体声信号的编码、解码方法、编码装置和解码装置 |
| US11100941B2 (en) * | 2018-08-21 | 2021-08-24 | Krisp Technologies, Inc. | Speech enhancement and noise suppression systems and methods |
| EP3671741A1 (en) * | 2018-12-21 | 2020-06-24 | FRAUNHOFER-GESELLSCHAFT zur Förderung der angewandten Forschung e.V. | Audio processor and method for generating a frequency-enhanced audio signal using pulse processing |
| CN111786674B (zh) * | 2020-07-09 | 2022-08-16 | 北京大学 | 一种模数转换系统模拟带宽扩展的方法及系统 |
Family Cites Families (18)
| Publication number | Priority date | Publication date | Assignee | Title |
|---|---|---|---|---|
| US5455888A (en) | 1992-12-04 | 1995-10-03 | Northern Telecom Limited | Speech bandwidth extension method and apparatus |
| JPH10124088A (ja) | 1996-10-24 | 1998-05-15 | Sony Corp | 音声帯域幅拡張装置及び方法 |
| JP3946812B2 (ja) | 1997-05-12 | 2007-07-18 | ソニー株式会社 | オーディオ信号変換装置及びオーディオ信号変換方法 |
| SE512719C2 (sv) * | 1997-06-10 | 2000-05-02 | Lars Gustaf Liljeryd | En metod och anordning för reduktion av dataflöde baserad på harmonisk bandbreddsexpansion |
| JPH11215006A (ja) * | 1998-01-29 | 1999-08-06 | Olympus Optical Co Ltd | ディジタル音声信号の送信装置及び受信装置 |
| US20030156624A1 (en) * | 2002-02-08 | 2003-08-21 | Koslar | Signal transmission method with frequency and time spreading |
| US6549884B1 (en) | 1999-09-21 | 2003-04-15 | Creative Technology Ltd. | Phase-vocoder pitch-shifting |
| AU2098801A (en) * | 2000-03-23 | 2001-10-03 | Interdigital Tech Corp | Efficient spreader for spread spectrum communication systems |
| EP1431962B1 (en) * | 2000-05-22 | 2006-04-05 | Texas Instruments Incorporated | Wideband speech coding system and method |
| SE0001926D0 (sv) * | 2000-05-23 | 2000-05-23 | Lars Liljeryd | Improved spectral translation/folding in the subband domain |
| US7260541B2 (en) * | 2001-07-13 | 2007-08-21 | Matsushita Electric Industrial Co., Ltd. | Audio signal decoding device and audio signal encoding device |
| US6895375B2 (en) | 2001-10-04 | 2005-05-17 | At&T Corp. | System for bandwidth extension of Narrow-band speech |
| JP4567412B2 (ja) * | 2004-10-25 | 2010-10-20 | アルパイン株式会社 | 音声再生機および音声再生方法 |
| JP2006243043A (ja) | 2005-02-28 | 2006-09-14 | Sanyo Electric Co Ltd | 高域補間装置及び再生装置 |
| JP2006243041A (ja) * | 2005-02-28 | 2006-09-14 | Yutaka Yamamoto | 高域補間装置及び再生装置 |
| US8364494B2 (en) * | 2005-04-01 | 2013-01-29 | Qualcomm Incorporated | Systems, methods, and apparatus for split-band filtering and encoding of a wideband signal |
| JP4701392B2 (ja) | 2005-07-20 | 2011-06-15 | 国立大学法人九州工業大学 | 高域信号補間方法及び高域信号補間装置 |
| US8951029B2 (en) | 2011-02-25 | 2015-02-10 | Polyline Piping Systems Pty Ltd. | Mobile plastics extrusion plant |
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2008
- 2008-03-26 DE DE102008015702A patent/DE102008015702B4/de active Active
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2009
- 2009-01-20 EP EP24211487.4A patent/EP4481736B1/en active Active
- 2009-01-20 HU HUE22183878A patent/HUE067868T2/hu unknown
- 2009-01-20 RU RU2010131420/08A patent/RU2455710C2/ru active
- 2009-01-20 ES ES24211480T patent/ES3058118T3/es active Active
- 2009-01-20 KR KR1020107017069A patent/KR101164351B1/ko active Active
- 2009-01-20 CN CN200980103756.6A patent/CN101933087B/zh active Active
- 2009-01-20 PL PL24189266.0T patent/PL4425492T3/pl unknown
- 2009-01-20 ES ES24211487T patent/ES3049189T3/es active Active
- 2009-01-20 EP EP17186509.0A patent/EP3264414B1/en active Active
- 2009-01-20 ES ES24212474T patent/ES3049192T3/es active Active
- 2009-01-20 EP EP22183878.2A patent/EP4102503B1/en active Active
- 2009-01-20 EP EP24212471.7A patent/EP4528731B1/en active Active
- 2009-01-20 CA CA2713744A patent/CA2713744C/en active Active
- 2009-01-20 EP EP24189266.0A patent/EP4425492B1/en active Active
- 2009-01-20 EP EP24212474.1A patent/EP4485460B1/en active Active
- 2009-01-20 HU HUE24212469A patent/HUE073515T2/hu unknown
- 2009-01-20 ES ES24189266T patent/ES3017561T3/es active Active
- 2009-01-20 HU HUE24211487A patent/HUE073495T2/hu unknown
- 2009-01-20 MX MX2010008378A patent/MX2010008378A/es active IP Right Grant
- 2009-01-20 DK DK17186509.0T patent/DK3264414T3/da active
- 2009-01-20 EP EP24211471.8A patent/EP4503026B1/en active Active
- 2009-01-20 AU AU2009210303A patent/AU2009210303B2/en active Active
- 2009-01-20 PL PL24211471.8T patent/PL4503026T3/pl unknown
- 2009-01-20 PL PL24211480.9T patent/PL4503027T3/pl unknown
- 2009-01-20 WO PCT/EP2009/000329 patent/WO2009095169A1/en not_active Ceased
- 2009-01-20 ES ES24212481T patent/ES3049193T3/es active Active
- 2009-01-20 US US12/865,096 patent/US8996362B2/en active Active
- 2009-01-20 ES ES17186509T patent/ES2925696T3/es active Active
- 2009-01-20 BR BRPI0905795A patent/BRPI0905795B1/pt active IP Right Grant
- 2009-01-20 PT PT171865090T patent/PT3264414T/pt unknown
- 2009-01-20 EP EP24212469.1A patent/EP4481737B1/en active Active
- 2009-01-20 ES ES24212471T patent/ES3049191T3/es active Active
- 2009-01-20 PL PL17186509.0T patent/PL3264414T3/pl unknown
- 2009-01-20 ES ES24212469T patent/ES3049190T3/es active Active
- 2009-01-20 ES ES22183878T patent/ES2988633T3/es active Active
- 2009-01-20 HU HUE24189266A patent/HUE070312T2/hu unknown
- 2009-01-20 EP EP24212481.6A patent/EP4510130B1/en active Active
- 2009-01-20 JP JP2010544618A patent/JP5192053B2/ja active Active
- 2009-01-20 PL PL22183878.2T patent/PL4102503T3/pl unknown
- 2009-01-20 EP EP09705824.2A patent/EP2238591B1/en active Active
- 2009-01-20 ES ES09705824.2T patent/ES2649012T3/es active Active
- 2009-01-20 EP EP24211480.9A patent/EP4503027B1/en active Active
- 2009-01-23 TW TW098102983A patent/TWI515721B/zh active
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